Wire-staple making and driving machine



(No Model.) v v 4SheetsSheet 1.

W. E. ARNOLD.

WIRE STAPLE MAKING AND DRIVING MACHINE. No. 472,516. Patented Apr. 12,1892.

4 Sheets-Sheet 2.

(Nu Model.)

w. E. ARNOLD. WIRE STAPLE MAKING AND DRIVING-- MACHINE. No. 472,516.

Patented Apr. 12

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(No Model.)

3 M e h S M e h S 4 D L 0 N R v H W WIRE STAPLE MAKING AND DRIVINGMACHINE. No. 472,516.

Patented Apr. 12, 1892.

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(No Model.) 4 Sheets-Sheet 4. W. E. ARNOLD.

WIRE STAPLE MAKING AND DRIVING MACHINE.

No. 472,516. Patented Apr; 12, 1892.

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U ITED STATES PATENT OFFICE.

IVILLIS E. ARNOLD, OF DANVILLE, ILLINOIS.

WIRE-STAPLE MAKING AND DRIVING MACHINE.

SPECIFICATION forming part of Letters Patent No. 472,516, dated April12, 1892.

Application filed July 9, 1891- erial No. 398,904. (No model.)

To all whom it may concern.-

Be it known that I, WILLIs E. ARNOLD, of Danville, in the county ofVermilion and State of Illinois, have invented certain new and use-.

f ul Improvementsin fire-Staple Making and Driving Machines; and I dohereby declarethe following to be a full, clear,and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in wire-staple making and drivingmachines; and it consists in certain novel features hereinafter firstfully described, and then pointed out in the claims.

111 the annexed drawings, which fully illustrate my invention, Figure 1is aperspective view of the complete machine. Fig. 2 is a side View ofthe same with a part of the supporting-frame broken away. Figs. 3 and 1are detail views of the clinching mechanism. Fig. 5 is a perspectiveView, on a larger scale, of the driver and feed-arm and theirconnections. Fig. 6 is a detail View of the driver and the partsimmediately contiguous thereto, the driver being in its highestposition. Figs. 7 and S are similar views illustrating the driver aboutmidway its stroke and in its lowest position, respectively. Fig. 9 is aperspective view of the driver. Fig. 10 is a view of the mechanism foradjusting the swinging frame. Fig. 11 is a detail sectional view of thedriver and former, and Fig. 12 is a detail view of the anvil-block.

The supporting-frame of the machine consists of a hollow column orstandard 1, rising from a suitable'base 2, a hollow arm 3, projectingforward from the standard, and an open frame 4:, secured to the upperend of the standard. In the base I arrange a treadle 5, which isdepressed by the foot of the operator when the machine is in use and isheld normally in its raised position by a spring secured thereto and tothe inner side of the standard, as clearly shown. Within the standardand rising from the treadle is a pitman 7, which has its upper endpivoted to the lower end of a lever 8. The front end of this lever ispivoted to the lower end of a link 9, which has its upper end pivoted tothe upper 'end of the driver 10, so that when the treadle is depressedthe driver will be carried downward and the desired work performed. Therear end of the lever 8 is pivotally mounted on a pin projecting fromthe rod 11, and the rear end of a lever 12 is also pivoted on the saidpin. Both ends of the rod 11 are threaded and thumb-nuts 13 14: aremounted thereon, so that by tightening one or the other of the nuts thepivot-pin carried by the rod may be raised or lowered and the head 15(to which the lever 12 is connected) adjusted to the thickness of thematerial operated upon. The front end of the lever 12 engages betweenthe lugs 16 on the rear side of the head 15, as clearly shown, andconsequently the head will be caused to follow the movement of the endof the lever. By the arrangement of parts just described I am enabled toreadily adjust the machine to the thickness of the material beingoperated upon without affecting the length of the stroke of theoperating mechanism.

The pitman 7 is provided with an offset 17 at an intermediate point ofits length, which bears upon the rear end of a levelor vibratory arm 18,pivoted within the arm 3 of the supportingframe, so that as the treadleis operated the said vibratory arm will be oscillated. The front end ofthis vibratory arm is perforated, and the lower threaded extremity ofthe clincher-bar 19 passes through the perforation, nuts 20 21 beingmounted on the said threaded extremity above and below the vibratory armin order to permit the stroke of the same to be adjusted. The upper endof this clincher-bar will force the dogs 22 upward, thereby clinchingthe staple, and at the same time the slightly-rounded point of theclincher-bar will rise slightly higher than the dogs and cause thepoints to be embedded in the work. The dogs 22 are pivoted within theupper end of the arm 3 and are provided with recesses or notches '23 intheir lower edges, which are engaged by the upper ends of the springs24, secured to the inner sides of the said arm, so that they will benormally held in their lowered positions and automatically returnedthereto after being operated.

To the front side of the head 15 I secure the wire holding and guidingframe 25, which projects laterally and supports and guides the wire tothe staple-forming mechanism. The

lower end of this frame is arranged to form Too the are of a circle, soas to hold the wire in the path traveled by the feed-arm 26, which ispivoted near its upper end to the upper end of the said frame and hasits lower end provided with a pawl or dog 27, adapted to engage the wireand carry it forward. The lower end of the feedarm is providedwith a lipor ledge 28, over which the wire passes, and the dog is pivoted somewhateccentrically above this lip or ledge, so that when the arm swingsupward and outward the dog will pass smoothly over the wire, but whenthe arm swings inward and downward the dog will grip and bind thewire-against the ledge, and thereby carry the same forward. A spring 29is secured on the feed-arm and bears against the pawl, so as to throwthe same outward and thereby insure the proper operation of the machine.The lower outer corner of the frame is provided with a similarwire-gripping device 30 to allow the wire to pass readily forward, butprevent it from passing backward after it has been cut. The operator isthus assured of a suflicient length of wire to form the staple and canreadily see when the available supplyof wire has been exhausted. Thefeed-arm is provided at its upper end with a slight extension 31, whichbears against an inclined portion orsurface 32 on the driver, so thatwhen the driver is thrown downward the feed-arm will swing inward andcarry the wire to the staple-forming mechanism. The feed-arm is thrownoutward as the driver rises by a spring 33, secured to the same and theframe 25.

In order to reduce the friction between the driver and the end of thefeed-arm, I mount a roller 34 on the upper end of the said arm, whichbears against the driver, as shown.

At the lower inner corner of the frame 25 I secure a short sleeve 35,through which the wire passes to the cutter and anvil and by which it isprevented from moving to either side. Just above the guide or sleeve 35I pivot to the inner side of the frame 25 a knife 36, which is adaptedto move across the end of the guide, and thereby out the wire. Thisknife is operated by means of a lateral inclined suface 37 on thedriver, which bears on the upper end of the knife, and thereby vibratesthe same as the driver is raised or lowered. The length of wire cut offby theknife is regulated by adjusting the frame 25 to and away from thedriver, the frame being pivoted to the head 15 for that purpose. Bypivoting the feed-arm to the frame 25 at a point higher than the pivotof the head the length of stroke of the feed-arm is automaticallychanged as the frame is adjusted to cut a long or short wire.

10 designates the driver or drivingbar, which rests in the front side ofthe head 15 and is provided at its upper end, on its rear side, with theoffset or lug 38, to which the upper end of the link 9 is pivoted, inorder that the driver may be operated, as hereinbefore stated. On itsfront side, at its lower end, the

driver is provided with the lifting-head 30, adapted to engage thestaple-former and raise the same in the operation of the machine, aswill be more fully set forth hereinafter. On one side the driver isconstructed with the upwardly and outwardly projecting inclined surface32, which operates the feed-arm, and just below this inclined surface 32it is constructed with the upwardly and forwardly projecting surface37,which operates the knife, as above mentioned.

The staple-former consists, substantially, of a Ushaped frame 40, havingits sides engaging the sides of the former lifting-head 39 by means of aton gue-and-groove connection and its head lying in front of the driverover the lifting-head. When the formeris lowered, the grooves in itssides will engage the ends of the cut-off wire and bend the samedownward to form the staple. Above the lifting-head the driver isprovided with a recess 41, in which I pivot a dog 42, which is adaptedto engage the upper end of the former, and thereby push the samedownward as the driver descends. The dog is pressed outward by a spring43, secured in the recess in rear of the dog, and its lower end isprovided with a beveled face 44:, which is adapted to impinge againstthe stop 45 on the face-plate 46 and be thereby disengaged from the former when the driver is lowered, so that the staple will be ej ectcd fromthe former and fastened in the material to be secured. The face-plate46, just mentioned, is a part of the head 15 and lies in front of thedriver to hold it in position. The lower end of the faceplate is reducedand the anvil-block 4:7 is sccured thereto. This anvil-block consists ofa spring-plate secured at its upper end to the inner face of thefaceplate and having its lower end enlarged and turned inward, as shownat 48. This enlargement 4:8 is provided with a transverse groove 49 inits edge, which receives the wire as it is cut off and holds it inposition to be engaged by the staple-former. At about the center of theface-plate there is a vertical longitudinal slot 50, in which I pivotthe staple-supporter 51, which extends downward in front of theface-plate and the driver and has its lower end turned inward, as shownat 52, to provide a tooth which is adapted to enter between the legs ofthe staple and thereby prevent the bending of the same until after theyhave entered the material being operated upon. The upper end of thestaplesupporter forms a finger 53, which plays in a slot or recess 54:in the driver, so that the said supporter will be caused to swing in andout as the driver ascends and descends. The lower edge of the finger isof a somewhat irregular shape and rests againsta roller or cam 55 in thelower end of the recess 54, so that the supporter cannot swing fromunder the staple too rapidly.

The construction and arrangement of the several parts of my improvedmachine will be fully understood from the foregoing description, and theoperation of the same is IIO thought to be clear. The materials. to bestitched or fastened together are placed over the upper end of the arm 3and held in that position under the driver. The treadle is depressed,thus drawing the driver downward and operating the machine. is depressedthe lateral pin on the pitman will push the inner end of the vibratoryarm downward, and thus cause the outer end of the same to swing upwardand push the clinching-bar into position to clinch the ends of thestaple asthey emerge from the under side of the material, the extremityof the bar being provided with a point to slightly embed the ends of thestaple in the work. As before stated, as the driver descends thefeed-arm will swing inward and feed the wire through the guide into thegroove in the lower edge of the anvil-block. Then the feed-arm hasreached the inner limit of its motion, it will remain stationarymomentarily, and at the same instant the knife will have completed itsvibration and pass over the wire, so as to cut the same. On the upwardstroke of the driver the knife will resume its initial position, (whichis accomplished by a spring, not shown,) so as to leave the end of theguide open for-another length of wire to pass therethrough, and thefeed-arm will swing outward, so as to again grip the wire and feedanother portion thereof forward on the succeeding dowustroke of thedriver. On the second downstroke of the driver the length of the wireleft in the lower end of the anvil-block will be engaged by thestaple-former and the ends of the same bent down so as to form thestaple, the anvil being pushed out of the path of the former by thedriver-head 39, as will be readily understood upon reference to thedrawings. The dog engaging the former will now be brought against thestop on the face-plate, and thereby automatically disengaged from theformer, so that the continued downward movement of the driver will causethe lifting-head to impinge upon the staple and expel it from the formerand at the same time force itinto and through the work, thestaple-supporter moving from under the staple as it is forced downwardby the lifting-head, and thus serving to hold the shoulder of the staplefirm and straight. After the staple has been thus driven home thetreadle is released and the several parts are then returned to theirinitial positions by the spring within the hollow standard. Then thedriver rises, the lifting-head will engage the staple-former and therebyraise the same, and the resiliency of the anvil-block will then force itoutward into the path of the former, thus arranging the machine to formand drive another staple. The former operation is then repeated, as willbe readily understood.

The advantages of my improved machine are thought to be obvious from theforegoing description, taken in connection with the accompanyingdrawings, and comment thereon is deemed unnecessary.

Having thus described my invention, what As the treadle I claim, anddesire to secure by Letters Patent, is

l. The combination of the head, the driver, the supporting-frame, thelever engaging the head and pivoted on the supporting-frame, the leverpivotally connected with the driver and having its end pivoted to theend of the first-mentioned lever, and suitable operating mechanism.

2. Thecombination of the supporting-frame, the vertically-adjustable rodmounted thereon, and the levers having a common pivotal connection withthe said rod and adapted to operate the head and the driver.

3. The combination of the supporting-frame,

the dogs pivoted thereon, the clinching-bar having a beveled upper endand arranged below and between the dogs, and suitable operatingmechanism.

4. The combination of the wire-holding frame, the feed-arm pivotedthereon, and the driver arranged adjacent to the wire-holding frame andprovided near its upper end with an inclined surface moving over theupper end of the feed-arm to vibrate the same.

5. The combination of the wire-holding frame, the feed-arm pivotedthereon, the knife pivotally mounted on the side of the wireholdingframe, and the driver provided with inclined surfaces adapted to operatethe feedarm and the knife by moving over the upper ends of the same.

6. The combination of a vertically-moving driver, a laterally-swingingfeed-arm operated by the driver, and a knife swinging at right angles tothe feed-arm and also operated by the driver.

7. The combination of the wire holding frame, the guide at the lowerinner corner of the same, the feed-arm pivoted to the wireholding frameand having its lower end swinging to and away from the said guide, theknife pivoted to the said frame and vibrating across the guide, andsuitable operating mechanism.

8. The combination of the driver, the anvil normally projecting underthe lower end of the driver, and the vertically-movable stapleformermounted on the lower end of the driver and adapted to take the wire fromthe anvil and form the staple.

9. The combination of the driver, the anvil, the lifting-head atthelower end of the driver, and the verticallymovable stapleformermounted on the lifting-head.

10. The combination of the driver, the staple-former on the lower end ofthe same to form the staple, the lifting-head, and the staple-supporter.

11. The combination of the driver, the faceplate provided with a stop,the lifting-head at the lower end of the driver, the staple-formermounted on the said lifting-head, and the dog mounted within the driverabove the stapleformer and adapted to engage the upper end of'the sameand be released therefrom by the stop on the faceplate.

TOO

12. The anvil-block consisting of at springplate having an enlargementat its lower end, provided with a transverse groove in its edge.

13. The combination of the face-plate, the driver having a1'eeess,:tndztcmn in the lower end of the said recess, and thestaple-supporter pivoted in the face-plate and having its up perendplaying in the recess in the driver an d resting on the cam at the lowerend of the said recess.

14. The combination of a driver, a lifting head at the lower end of thesame, a stapleformer mounted on the lifting-head, a dog \VILLIS E.ARNOLD.

E. E. BOUDINOT,

Witnesses: 1 II. I DICE.

